User manual HANNA INSTRUMENTS HI 8033

[. . . ] Instruction Manual HI 8033 - HI 8633 HI 8733 - HI 8734 HI 933000 Portable Multi-Range Conductivity/TDS Meters mS HI 8633 COND. TEMP. ns Conduct ivity met er ON OF F 1999 µS 199. 9 mS ins rum 199. 9 µS 19. 99 mS TEMPE RATUR E http://www. hannainst. com These Instruments are in Compliance with the CE Directives Dear Customer, Thank you for choosing a Hanna Product. Please read this instruction manual carefully before using the instrument. It will provide you with the necessary information for a correct use of the instrument, as well as a more precise idea of its versatility. [. . . ] If you prefer to standardize the temperature compensation to 20°C (68°F) rather than 25°C (77°F), adjust the trimmer to read "11. 67 mS" (see the conductivity vs. All subsequent measurements will be compensated to 20°C. · The calibration is now complete and the instrument is ready for use. 14 70 HI PROCEDURE FOR HI 8733 30 The instrument should be re-calibrated at least once a month, or when the probe or battery is changed. Note: For more accurate results, it is advisable to use a calibration solution close to the range to be measured. See the accessories section on page 23 for a wide selection of conductivity solutions. · Pour sufficient quantity of a TDS calibration solution (e. g. HI 7032) into a beaker to cover the holes on the probe. If possible, use plastic beakers to minimize any EMC interference. · Immerse the TDS probe, making sure that holes are completely submerged, and the ChecktempC in the solution. · Wait for a couple of minutes for thermal equilibrium to be reached. · Tap the probe on the bottom, then shake it while rotating to make sure no air bubbles remain trapped in the sleeve. · Record the temperature of the HI 7032 buffer solution from the ChecktempC (e. g. 18°C). °C · Switch the instrument on by pressing ON/OFF. · Press TDS/TEMP to display the temperature. · Adjust the TEMPERATURE knob to display 18°C. ON OFF TDS TEMP. TEMPERATURE · Press TDS/TEMP again to display the TDS measurement. · Select 1999 mg/L range by pressing the appropriate range key. TDS TEMP. 1999 mg/l 15 HI 7 03 PROCEDURE FOR HI 8734 0 · Adjust the calibration trimmer (see page 7, #6) on the side of the instrument with the calibration screwdriver until the display shows the TDS reading at 25°C (see the TDS vs. @25°C "1382 mg/L". TEMPER ATURE · All subsequent measurements will be compensated to 25°C (77°F). If you prefer to standardize the temperature compensation to 20°C (68°F) rather than 25°C (77°F), leave the TEMPERATURE knob to 18°C (if the temperature of the solution is 18°C). Adjust the trimmer to read "1251 mg/L" (see the TDS vs. All subsequent measurements will be compensated to 20°C. · The calibration is now complete and the instrument is ready for use. [. . . ] This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. [. . . ]